Joby's business is about to take off. The auto ridesharing market has become one of the most important tech advancements of the last 15 years, enabling new jobs and an entirely new way to get around cities around the world. The same kind of disruption may be coming for the aviation market, led by Joby Aviation (JOBY -14.57%) and its electric aircraft. It's not a business without risks, given the nascent state of the industry, but Joby has the technology to be a major player in the market. Getting off the gr ...